Meh, it was kinda a slog to get through the books. Like, it's an interesting world and all, but the writing itself is where those books suffered the most to me. If they have their own vision for it, I can see why they didn't consult him as much.
Contrast to Mike Pondsmith, who not only built the base for the world but also designed a game. Mechanics for all the things CP2077 wanted existed already, and they had to heavily adapt them for the game. But those mechanics still exist, and may be explored in future titles. Netrunning on the ttrpg is especially different. But if/when they decide to expand on that, Mike Pondsmith is going to be the first person they call. Would they call Andrzej for anything like that in the Witcher series? I doubt it, since that world was only built big enough to serve its stories. The Cyberpunk world was built as an arena for players to make their own stories, so it naturally needs to have at least some information already for a lot of seemingly disconnected places, people, and points in history. It leaves a veritable buffet for adaptations to draw from, all of which needs fleshing out rather than starting from scratch. And Mike may already have something cooking for that bit that ties together 4 others. At least, that's the impression I get when I hear him talk about lore tidbits on Morro Rock radio.